The Elbow

General side effects

1. Toxic Effects: Toxic reactions are dose-dependent side-effects related
   to an excessive amount of product that reaches the blood circulation.
   They may be the result of unintentional intravascular injection or absolute
   overdose.
• a stimulation of the central nervous system is characterized by anxiety,
  excitement logorrhoea,hypertension, headache, dizziness tremor and
  muscular cramps;
• a depression of cortex and medulla leads to hypotension, bradycardia,
  cardiovascular and respiratory depression and finally to respiratory arrest.


2. Allergic reactions. These are side-effects not related to dose. They can occur
   even after the administration of small amounts of the agent.
   
   • Previous exposure and sensitization to the active product or to its
     preservatives or to metabolites is an essential precondition.
   • There is also a risk for cross-allergy with derivates of para-aminobenzoic
     acid, sulfamides, and some phenothiazines;

Local side effects

1. Local pain. May be present for one to two hours after the infiltration and disappears spontaneously.
2. Haematoma and/or ecchymosis.

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